Episode 1

A strange four-year-old boy named Kotaro moves into Shimizu Apartment all on his own. He doesn't seem to have any parents or family around.

Episode 2

Karino figures out why Kotaro talks the way he does: he's copying Tonosaman, his favorite cartoon character from a show that's about to end.

Episode 3

When he sees someone handing out free balloons, Kotaro tries to collect as many as he can. But there's a reason he wants so many balloons.

Episode 4

Kotaro's friend Kakeru has a maid who takes care of everything for him, so Kotaro decides to show Kakeru how to do things for himself.

Episode 5

For some reason, Kotaro is very particular about his tissues. He wants expensive, soft ones because they're "sweet." Later, Karino figures out why.

Episode 6

A man named Aota moves into the building for a month. When he asks Kotaro to be his friend, Karino gets suspicious — and a little jealous.

Episode 7

A girl named Kana starts coming over to Kotaro's house to play everyday after kindergarten, but she never seems to have fun.

Episode 8

Karino brings Kotaro and all his friends to the movies. Kotaro wants to see the new Tonosaman film, but the other kids want to watch something else.

Episode 9

Whenever Kotaro goes to see the neighborhood dentist, Dr. Ohba always takes the time to talk to him and ask him lots of questions.

Episode 10

One day, a woman Kotaro doesn't recognize comes to pick him up from kindergarten. She says she's Karino's ex-girlfriend.